Home / 21,133.47-31,703.30-6,343.55

Finding the Fourth Proportional to 21,133.47, 31,703.30 and 6,343.55

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Solution

The fourth proportional to 21,133.47, 31,703.30 and 6,343.55 is: 9,516.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,133.47 : 31,703.30 = 6,343.55 : x
  2. Step 2: Convert to fraction form
    21,133.47/31,703.30 = 6,343.55/x
  3. Step 3: Cross multiply
    21,133.47x = 31,703.30 × 6,343.55
  4. Step 4: Simplify right side
    21,133.47x = 201,111,278.48
  5. Step 5: Solve for x
    x = 201,111,278.48/21,133.47
  6. Step 6: Final answer
    x = 9,516.25

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.